Wells – Processes – Placing or shifting well part
Reexamination Certificate
2007-10-09
2007-10-09
Dang, Hoang (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S115000, C166S116000
Reexamination Certificate
active
11085381
ABSTRACT:
Systems and methods for guiding a seal assembly associated with a string of production tubing, or a tubular member generally, into a receptacle within a wellbore. The muleshoe of a seal assembly is provided with an auto entry guide device in the form of a guide member or kickover lug that is radially moveable with respect to the muleshoe. The kickover lug is collapsible radially inwardly and biased radially outwardly. The auto entry guide device may also include a centralizer bowspring that is mounted upon the muleshoe. Additionally, the muleshoe is mounted for rotational movement with respect to the seal assembly.
REFERENCES:
patent: 2114521 (1938-04-01), Brown
patent: 4146091 (1979-03-01), Terral
patent: 4286657 (1981-09-01), Kohn
patent: 4368780 (1983-01-01), Merritt
patent: 4442893 (1984-04-01), Foust
patent: 4951746 (1990-08-01), Setterberg, Jr.
patent: 5303774 (1994-04-01), Duhn et al.
patent: 5330001 (1994-07-01), Baugh et al.
Brochure for “Model ‘S-22’ Multiple Acting Indicator Seal Assembly” (Oct. 1, 2003).
Corbett Thomas G.
Peterson Elmer R.
Baker Hughes Incorporated
Dang Hoang
Hunter Shawn
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